题解 | #分组排序练习题#
分组排序练习题
http://www.nowcoder.com/practice/e00bbac732cb4b6bbc62a52b930cb15e
SELECT university, AVG(question_cnt) AS avg_question_cnt
FROM user_profile
GROUP BY university
ORDER BY avg_question_cnt
分组排序练习题
http://www.nowcoder.com/practice/e00bbac732cb4b6bbc62a52b930cb15e
SELECT university, AVG(question_cnt) AS avg_question_cnt
FROM user_profile
GROUP BY university
ORDER BY avg_question_cnt
相关推荐